<footer class="footer">
  <div class="row" >
    <div class="col-md-10">
      <small>© 2018 cyyzero All rights reserved.</small>
      <nav>
        <ul>
          <small>Powered by rails</small>
          <%= link_to image_tag("rails.png", alt: "Rails logo", size: "20x30"),
                  'http://rubyonrails.org/' %>
        </ul>
      </nav>
    </div>
  </div>
</footer>
